Island



Patented Mar. 2|, I899.

G. w. STAFFORD & A. E. KELMEL. DOUBLE ACTION JACOUARD MACHINE.

(Application filed Se t/a, 1898.)

3 Shad -Sheet (No Model.)

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m: NORRIS PETERS c0, PHOTO-LITHQ, WASHINGTON. n. c.

No. 621,544. I Patentied mar. 2|, l899.'

a. w. STAFFORD & A. KELMEL. v DUUBLE ACTION JACQUARD MACHINE.

(Application filed Sept. 3, 1898.) (No Model.) a Sheets-Sheet 2.

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No. 621,544.. 7 Patented Mar. 2|, I899. G. W. STAFFORD &. A. E. KELMEL.

DOUBLE ACTION JAOOUABD MACHINE.

(Application filed Sept. 3, 1898.) v

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(No Model.)

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@ M .4. YQLLL o fiborn eys ans PzYsns co PHD UNITED I STATES PATENT QEErcE.

, GEORGE w. STAFFORD AND ALBERT E. KELMEL, OF PROVIDENCE, RnoDE ISLAND, ASSIGNORS TO THE oRoMPToN aKNowLEs LOOM woRKs, or

\VORCESTER, MASSACHUSETTS.

DOUBLE-ACTION JACQUARD-MACHINE.

SPECIFICATION forming part of Letters Patent No. 621,544, dated March 21, 18 99.

' Application filed September 3,1898. Serial No. 690,163. (No model.)

To all whom it may concern:

Be it known that we, GEORGE W. STAFFORD and ALBERT E. KELMEL,citizens of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Double-Action J acquard-Machines, of which the followingis a specification, ref erence being had therein to the accompanyro ing drawings.

The invention relates more particularly to what are known as double-action or double-acting. jacquard-machines. In certain forms of machines of this class there is employed for each neck and tail cord a double hook or hooked upright, and the machine has two moving grifts working alternately and both intended to engage with the said double hook or hooked upright, but not both at the same time, the one griff ascending while the other is descending for one pick, and vice versa, for the next pick, and so on. In consequ ence of the fact that the double upright has a plurality of grid-hooks, one for engagement :5 with each moving griff, it follows that when one griff is descending, carrying with it an upright which previously was raised, but which should occupy a lowered position in the next shed formation, the disengaged hook on said 0 upright projects into the path of movement of the ascending griff, and hence thelatter will engage with the said hook of the descending upright unless such engagement is provided against, and by arresting the de- 5 scent of such upright and carrying it back into an upper position will make thereby a false indication and cause a mispick.

The object of the present invention is to provide a means of preventing undesired engagement of a descending upright by the ascending griff, which shall obviate the necessity of making a second or extra beat of the card cylinder or prism for the same purpose.

' This latter mode of providing against the said engagement is seriously disadvantageous.

When it is undertaken to prevent improper engagement of a descending upright by the ascending griff at the time when the two mov ing griffs are passing each other by causing an additional movement of the card cylinder or prism to present again to the needles the same card which was last presented thereto, a slowing down of the operation of the loom below the speed that otherwise would be attainable is necessitated, since such additional 5 5 movement of the card cylinder or prism renders it necessary to occasion two complete beats or movements of the cylinder or prism for each pick of the loom. For instance, if it were desired to run a loom at the rate of one hundred and fifty picks per minute the card cylinder or prism would be required to make three hundred beats against the needles per minute. By obviating the necessity of making the second or extra beat of the card cylinder or prism for the purpose of preventing improper engagement of the ascending griif with the descending upright and by providing devices to press back the descending uprights out of the reach of the ascend- 7o ing gritf we are enabled to run a loom having a double-action jacquard-machine applied thereto at a higher rate of speed than we heretofore have known to be possible.

The invention consists in the novel features 7 5 and combinations which we will now proceed to describe with'reference to the accompanying drawings, in which latter we have illustrated the best embodiments of our invention that we have yet contrived.

The distinguishing andcharacteristic features of the invention are particularly pointed out and distinctly defined in the claims at the close of this specification.

Figure 1 of the drawings shows in side elevation certain portions of a double-action jacquard-machine having one embodiment of our invention applied thereto, only such old parts being shown as arenecessary in order to make clear the relations and mode of 0 operation of our new devices. Fig. 2 is a view, mainly in transverse vertical section, showing certain of the parts which are represented in Fig. 1. Fig. 3 is a plan View of certain of the parts which are represented in 5 Figs. 1 and 2, the same being drawn on an enlarged scale. Fig. 4 is a View in detail, showing more especially the formofthe pressback wires and the manner of engagement with the uprights. Fig. 5 is a view in verti- I00 cal section on the plane that is indicated by the dotted line 5 5 in Fig. 2, looking in the direction of the arrows which are located adjacent to the ends of the said dotted line.

, The framing and certain fixed parts which are applied thereto are designated 1 1 in the different views or figures of the drawings, the usual bottom board being designated 2, the double hooks or uprights being designated 3 3, the usual needles cooperating therewith being designated 4 4, the springs which are applied to the said needles being designated 5 5, and the usual card cylinder or prism being designated 6. The two moving griffframes are designated 7 and 8, respectively, the blades applied thereto being designated, respectively, 71 and 81 and being arrangedin alternating succession, as shown. The two griff-fames 7 and Sare shown as mounted, respectively, on the slide-rods 9 and 10, as usual, the said slide-rods being fitted to move in guides 11 11 011 the fixed framework of the ascending griff.

machine, all as usual, and the griff-frames being in practice actuated through suitable power connections, but not necessary to be shown or described herein, and thereby being caused to move simultaneously in opposite directions with respect to each other. The card cylinderor prism 6 in practice will be supported and operated by devices of usual character and construction, (not herein shown,) and thereby will be caused to make one beat for each shed formation, this usually corresponding with one pick of the loom, to which the jacquard-machine is applied. The uprights 3 3 are double, as shown, each limb of each of such uprights having a hook, as 31, for engagement with the actuating-griff. One limb of each upright is designed for eooperation with a griff-blade 71, and the other limb thereof is designed for cooperation with the adjacent griif-blade 81, one of such griffblades being designed to be uplifted for one shed formation and the other thereof being designed to be uplifted for the succeeding shed formation, and so on in regular alternation.

12 12 designate the blades of a stationary griff, such as sometimes is emp1oyedthat is to say, in full open-shed j acquard-maehineswhen it is desired that an upraised upright shall remain in its elevated position for several picks in succession without being caused to descend meanwhile.

32 32 designate hooks that are formed on the uprights 3 3 for engagement with the stationary griff-blades 12 12.

The devices which have been described thus far are common to preexisting jacquardmachines.

YVith the foregoing devices we combine means whereby as each of the moving griifs in turn descends the disengaged hooks of the uprights which are engaged and descending therewith are pressed back, so that the said hooks thereof shall be out of the path of the Thereby we prevent the ascending griff from picking up a descending uprightand raising it at a time when it should be lowered into a depressed position. lrVe use, by preference, wires which are arranged to engage with the respective limbs of the uprights 3 3 and are moved transversely with relation to the griffs at the proper moment in the working of the jacquard-machine,- so as to press the disengaged hooks on the said uprights out of the path of the ascending griffblades. The said wires or their equivalents may be variously constructed, arranged, and applied. WVe have shown them herein as constituting a set of supplemental needles, the same being designated 13 13 and having eyes or the equivalent thereof where they engage with the limbs of the uprights 3 3, as at 131 131. Herein the press-back needles or wires engage with prolongations of the stems of the uprights above the hooks thereof. Vhen these wires are moved toward the right in the drawings, they press the limbs of the uprights to the right also,thereby carrying laterally clear of the ascending griff-blades those hooks 31 31 which are not in engagement with either the ascending grilf-blades or the descending griif-blades.

The press-back wires 13 13 are mounted in a movable carrier, herein shown as consisting of cross-bars 331, to which the opposite ends of the wires 13 13 are applied, supporting-arms 34 34:, by which the said cross-bars are upheld, and slide-rods 35 35, to which the supporting-arms 34 34 are attached. \Vith the carrier for the press-back wires is combined means for reciprocating the said carrier horizontally in proper timing with reference to the movements of the two moving griffs, whereby each time the said moving griffs pass each other the carrier and pressback wires are operated to bear the uprights laterally in order to move the hooks of the disengaged descending uprights laterally clear of the blades of the ascending grid, and thereby prevent the engagement of such hooks with'the said blades. Preferably we arrange for operating the carrier from one of the moving griifs or a part connected and moving in unison therewith. Thus we have shown in the drawings a cam in engagement with a pin or roller, one of the said parts being connected to move with one of the moving griffs and the other being connected with the carrier. In the present embodiment of the invention the cam (herein designated 36) is attached to the slide-rod 9 of the griff-frame 7, while the roller, which is engaged by the said cam, the same being designated 37 herein, is mounted on a pin 38, which is attached .to a slide-rod 35. The cam 36 preferably is a slotted cam, as shown, so that it shall operate to move the carrier positively in both directions horizontally, and is shaped, as shown, to occasion a complete reciprocation of the said carrier in each complete vertical movement of the cam up or down. Thereby each time the moving grilfs pass each other at an IIO intermediate point in their vertical traverse the carrier, with the press-back wires mounted therein, is moved toward the right, so as to carry the disengaged hooks of the uprights out of the path of movement of the ascending griff-blades.

The ends of the press-back wires or needles 13 13 at the left in Figs. 1, 2, and 3 of the drawings are inserted into horizontal holes in the cross-bar 33. The right-hand ends of the said wires 13 13 are bent to form eyes, through which are passed the stems of pins 39, entering vertical holes that are provided in the said cross-bar. This manner and means of applying and connecting the pressback wires 13 13 to the cross-bars 33 331 provides conveniently for the support and retention of the said wires in the carrier and facilitates the application and removal thereof.-

lar being located at or near mid-length of the said slide-rod. This collar is formed or provided with an arm or lug, as 41, and to the said collar and arm or lug a vertical strip 42 is affixed, as by means of a bolt 43. To the depending portions of the strips 42 are secured the opposite ends of a bar 44, extending crosswise of the machine immediately below the press-back Wires or needles 13 13 and parallel with the cross-bars 33 331. The pressback wires or needles rest upon the upper surface of this cross-bar 44 or else are located normally immediately adjacent to such surface, so that the said cross-bar constitutes a stay or support for the intermediate portions of the said wires or needles. Pins 45 45 are driven into the top of cross-bar 44 between unison with the carrier and the press-back wires or needles, it being, in effect, a part of the carrier. During the operation'of the jacquard mechanism having the present invention applied thereto the rising and falling of 'the uprights 3 3 produces suflicient friction where they make contact with the press back wires or needles to tend to keep these latter continually jumping, and this would occasion unnecessary wear thereof if the jumping were not prevented. Theintermediate rest 44,with its headed pins 45, restrains the press-back wires or needles from unnecessary movement either sidewise or vertical. Preferably the pins 45 are of the character or construction known as split, or spring, or cotter pins, as shown clearly in the drawings, and this facilitates their application to the-rest 44 or their removal therefrom, rendering such removal and subsequent replacing of the said scribed. The drawings show two rows thereof, one, row being located immediately above the other. Each wire or needle 13 is formed with a succession of half-eyes therein, as at 131 131, for the reception of the prolongations of the uprights above the upper books 31 31 of the latter, these half-eyes being, for example, of semicircular shape, as shown. Two wires or needles are used in oonj unction, one thereof being'located immediately above the other, the said wires or needles being turned so that their half-eyes face in opposite directions, as shown, whereby each of such wires or needles serves to retain the limbs of the corresponding series of uprights in the halfeyes of the other of such wires or needles. This use of wires or needles in pairs and formed with half-eyes enables us to avoid the use of wires or needles having round eyes, as usual heretofore in jacquard mechanism. The wires or needles With half eyes are cheaper to make, are much more easily and conveniently put into the machine and taken out again, and have no objectionable features in operation.

What we claim is- 1. The combination with the uprights, and the oppositely-moving griffs, of the press-back wires engaging with prolongations of the stems of the uprights above the hooks thereof, the movable carrier in which the press-back wires are mounted, and actuating means for said carrier whereby to move the carrier transversely in the machine and cause said wires to bear the uprights laterally, substantially as described.

2. The combination with the uprights, and the oppositely-moving griffs,of the press-back wires engaging with prolongations of the stemsot the uprights above the hooks'thereof,

the movable carrier for the press-back wires,-,

and a cam and pin or roller engaging with said cam, one of the last-mentioned parts being connected with the carrier and the other moved in unison with the griffs, whereby to move the said carrier transversely in the machine, substantially as described.

3. The combination with the uprights, and the oppositely-movinggriffs,of the press-back wires engaging with prolongations of the stems of theuprights above the hooks thereof, the movable carrier for the press-back wires, and the slotted cam and pin or roller engaging .with said cam, one of the last mentioned parts being connected with the carrier and the other moved in unison with the griffs, whereby to move the said carrier transversely in the machine, substantially as described.

ICC

4. The combination with the uprights, and

stems of the uprights above the hooks thereof,

the movable carrier supporting the opposite extremities of the said wires, and means to actuate said carrier whereby to move the same transverselyin the machine and thereby cause said Wires to bear the uprights laterally, substantially as described.

5. The combination with the uprights, and the oppositely-moving griffs,of the press-back Wires to prevent engagement of a descending upright with an ascending grift', the carrier engaging with the opposite extremities of the said wires and provided with a rest to restrain the intermediate portions of the said wires from movement through their engagement with the uprights, and means to actuate said carrier whereby to cause said Wires to bear.

the uprightslaterally, substantially as described.

6. The combination with the uprights, of the press-back wires engaging therewith, the

carrier engaging with the opposite extremities of the said wires, the rest mounted on the carrier and located at an intermediate point in the length of the wires, and the pins applied to the said rest and holding the wires from movement, substantially as described.

7. The combination with the upright, of the two wires each having the half-eye to receive a limb of the upright, the said half-eyes facing in opposite directions whereby each wire serves to hold the upright in the halfeye of the other wire, substantially as described.

In testimony whereof we aftix our signatures in presence of two witnesses.

GEORGE WV. STAFFORD. ALBERT E. KELMEL. \V itnesses:

E. F. GREENE, F. E. Ronnms. 

